ANALYTICAL CHEMISTRY Volume 24, N o . 2 Issued February 1 8 , 1 9 5 2 Copyright 1952 by American Chemical Society
EDITOR WALTER J. M U R P H Y
EDITORIAL FOURTH
231
ANNUAL
REVIEW
OF
ANALYTICAL
Applications of Analytical Developments Coatings T. G . Rochow and R. W . Stafford
232
Nonferrous Metallurgy M . L. Moss
Food
237
Petroleum
266
P h a r l a L u ^ l s and Natural Drugs. . M . M . Marsh and W . W . H i l t y Natural and Synthetic Rubbers . . . Norman Bekkedahl Water Analysis. S. K. Love and L. L. Thatcher
271
J R .
Matchett and
H.
W.
von
Loesecke
Executive
Editor
James M . Crowe Assistant to Editor
Solid and Gaseous Fuels H . T. Darby Ferrous Metallurgy H . F. Beeshly
N. A. Parkinson Associate
Editors
Lawrence T. Hallett
CHEMISTRY
244 252
258
279 294
(End of Review Section)
TITRATIONS
IN
NONAQUEOUS
SOLUTIONS
Potentiometric Titration of Salts of Organic Bases in Acetic A c i d C. W . Pifer and E. G . Wollish
300
Charlotte C. Sayre
Titration of Certain Salts as Acids in Nonaqueous Solvents J . S. Fritz
306
Contributing Editor
Determination of Sulfa Drugs and Sulfonamides J . S. Fritz and R. T. Keen
308
Titrations in Nonaqueous Solutions (Round-Table Discussion) J . A . Riddick, J . S. Fritz, M . M . Davis, E. F. Hillenbrand, Jr., P. C. Markunas
310
G. Gladys Gordon Stella Anderson
R. H. Müller Assistant
Editors
Katherine I. Biggs Ruth Cornette Editorial
Assistants
M a r y R. Carls Betty V. Kieffer Doris L. Krout Advisory
Board
S. E. Q . Ashley P. J. Elving N. H. Furman D. M . Hume W . A. Kirklin S. S. Kurtz, Jr. H. A. Laitinen G o r d o n MacKinney C. J. Rodden J. W . Stillman G r a n t Wernimont Edward Wichers
T h i s M o n t h ' s C o v e r . A new high in automatic analysis of alloys has been achieved in laboratories of Aluminum Company of America with the use of quantometers and other direct reading spectroscopic instruments. Alcoa's J. R. Churchill, shown operating a production control quantometer, is one of the leaders of analytical revolution in which analyses of historical import are being replaced by on-the-spot analyses to permit continuous control during metallurgical processes. About 70% of determinations made in Alcoa's plants are handled by direct reading instruments. The one in the photograph automatically produces a written analytical report within two minutes of presenting the sample and will handle all determinations normally required commercially on aluminum alloys.
Titrimetry in Glacial Acetic A c i d P. C. Markunas and J . A . Riddick
31 2
Fatty A m i n e Products of High Molecular Weight D. E. Terry, K. R. Eilar, and O . A . M o e
313
Infrared Spectra of Steroids
315
William Tarpley and Cecelia Vitiello Correlation of Infrared Spectra H . L. M c M u r r y and V e r n o n Thornton
318
Infrared Absorption Band Due to Nitrile Stretching Vibration Robert E. Kitson and Norman E. Griffith
334
Theoretical Basis of Bouguer-Beer Law of Radiation Absorption F. C. Strong
338
Precision Colorimetry C. F. Hiskey and David Firestone
342
Thermistors for Cryoscopy of Air-Sensitive Materials P. D. Zemany
348
Freezing Points in Determination of Product Purity C. R. Witschonke
350
Qualitative Separations by Two-Way and Three-Way Electrochromatography . . . . H . H . Strain
356
Analysis of Mixtures of Carboxylic Acids J . D. Roberts and C. M c G . Regan
360
Determination of Carbon, O x y g e n , and Sulfur in Copper W . M . Hickam
362
Analytical Applications of Polarography of Molybdenum M . G . Johnson and R. J . Robinson
366
Determination of Nitrogen Philip McCutchan and W . F. Roth
369
2,9-Dimethyl-1,10-phenanthroline G . F. Smith and W . H . M c C u r d y , Jr.
371
Colorimetric Determination of Sodium Salts of Ethylenediaminetetraacetic A c i d . A l b e r t Darbey
. .
Factors Affecting Determination of Protein-Bound Iodine in Serum J . J . Moran Quantitative Determination of Raffinose in Mother Beets and Raw Beet Juices by Paper Chromatography R. J . Brown Determination of Geometric Surface Area of Crushed Porous Solids Sabri Ergun
373 378
384 388
(Continued on page 4 A)
